View-holder.



PATENTED AUG. 7, 1906.

T. P. CHARLTUN.

VIEW HOLDER.

APPLICATION FILED NOV.14,1905.

:c., WASHINGTON. n. u.

UNITED STATES PATENT ()FFIQE.

THOMAS F. CHARLTON, OF MEADVILLE, PENNSYLVANIA, ASSIGNOR TO KEYSTONE VIEW COMPANY, A CORPORATION OF PENNSYLVANIA.

VIEW-HOLDER.

Specification of Letters Patent.

Patented Aug. 7, 1906.

Application filed November 14 1905. Serial No- 287,247.

a citizen of the United States of America, anda resident of the city of Meadville, county of Crawford, and State of Pennsylvania, have invented certain new and useful Improvements in View-Holders, of which the following is a specification.

The present invention relates generally to stereoscopes, and has more particularly reference to an improved view-holder.

The object of the invent on is to produce a view-holder of an inexpensive character and which at the same time will be strong and rigid enough to prevent any torsional twist as it is moved back and forth on the shaft of the stereoscope.

To this end the invention comprises a viewholder composed of wire bent into a central loop through which the shaft of the stereoscope is adapted to extend and terminating in a grasping portion underneath the said shaft, the said wire extending from said loop to form a cross-bar terminating in end guides formed by substantially parallel strands of wire for the reception of the view.

In the particular form followed it is preferable to have two lengths of wire, each bent up into substantially parallel strands to form end guides for the reception of the view and extending toward a common central portion, where the strands of both lengths run substantially parallel and arebent downwardly and back, forming a loop through which the shaft extends, while the free ends of the strands converge at a common point under neath the shaft and form a downwardly-projecting grasping portion.

In the prior art whereparallel strands of wire have been used to'form the end guides and cross-bar of view-holders it has been customary to reinforce the said cross-bar and end guides by means of metallic plates extending from one strand to the other and flanged over the same, so as to give the proper strength and rigidity to the structure to prevent any torsional twist and to form a support for the lower edge of the view.

Another object of the present invention is to dispense with these reinforcing-plates and to this end the improved view-holder is composed of a central portion, preferably, but not necessarily, of wire, adapted to slide on the shaft of the stereoscope, together with substantially parallel strands of wire formed into end guides extending from the central portion, the said parallel strands of wire being twisted together at a point intermediate the central portion and end guides to form a support for the lower edge of the view and to prevent torsional twist.

In the accompanying drawings is shown the preferred form of the invention; but it will be understood that changes in construc-.

tion may of course be made and the wire bent differently without passing beyond the scope of the invention.

In the said drawings, Figure 1 is a perspective view of the view-holder embodying the invention shown in position on the shaft of the stereoscope. Fig. 2 is a top plan view of the central loop, Fig. 3 shows a section taken on line 3 3 of Fig. 1 through the shaft.

Similar characters of reference indicate corresponding parts in the different figures.

1 and 2 indicate the two lengths of wire used in bending up the view-holder. As will be seen, each of the said lengths of wire is doubled on itself and properly shaped into parallel strands 3 and 4, so as to form end guides 5 for the reception of the view. From these end guides the strands extend as a crossbar preferably substantially parallel toward the central-portion, where both strands of each length of wire run parallel with the strands of the other length of wire and are bent downwardly, as at 6, and then back, as at 7, converging toward a common point 8, where they are suitably fastened together by being twisted up, as shown, or by being soldered, as indicated in the drawings by reference-number 9, or they may be fastened together in any other way found suitable.

The parallel strands of each length of wire are preferably twisted together, as indicated at 10, at a point intermediate the end guides and the central loop, this tending to increase the strength of the structure and insuring the view being presented at right angles to the angle of vision, besides forming a support for the lower edge of the view.

It is evident thatif the wire loop is a little too large for the wooden shaft it would not stay in its place, and for this reason it is preferable that the wire should be bent down at the points 6 7 8, whereby the wire will have to be forced back again when the cross-bar is inserted on the shaft and would therefore fit snugly on the same.

What is claimed is 1. As a new article of manufacture, a viewholder for stereoscopes composed of wire bent into substantially parallel strands forming a cross-bar and end guides for the view, the said parallel strands being bent back at the central portion of the view-holder to form a central loop through which the shaft of the stereoscope extends.

2. As a new article of manufacture, a viewholder for stereoscopes composed of wire bent into substantially parallel strands forming a cross-bar and end guides for the view, the said parallel strands being bent back at the central ortion of .the view-holder to form a central oop through which the shaft of the stereoscope extends, said strands having their free ends formed into a grasping portion underneath the shaft.

3. As a new article of manufacture, a vi ewholder for stereoscopes composed of wire bent into substantially parallel strands forming end guides for the view, the said parallel strands being bent back at the central portion of the view-holder to form a central loop through which the shaft of the stereoscope extends.

4. As a new article of manufacture, a viewholder for stereoscopes composed of wire bent into substantially parallel strands forming end guides for the view, the said parallel strands being bent back at the central portion of the view-holder to form a central loop through which the shaft of the stereoscope extends, said strands having their free ends formed into a grasping portion underneath the shaft.

5. As a new article of manufacture, a viewholder for stereoscopes composed'of wire bent into a'central loop through which the shaft of the stereoscope extends and from which central loop the wire extends in substantially parallel strands terminating in end guides for the reception of the view.

6. As a new article of manufacture, a viewholder for stereoscopes composed of wire bent into a central loop through which the shaft of the stereoscope extends and provided with a downwardly-extending grasping portion, and from which central loop the wire extends in substantially parallel strands terminating in end guides for the reception of the View.

7. As a new article of manufacture, a viewho'lder for stereoscopes composed of two lengths of wire, each bent into substantially parallel strands forming end guides, and extending toward a common central portion where the strands of both lengths runsubstantially parallel and are bent downward and back forming a loop through which the shaft extends.

8. As a new article of manufacture, a viewholder for stereoscopes composed of two lengths of wire, each bent into substantially parallel strands forming end guides, and extending toward a common central portion where the strands of both lengths run substantially parallel and are bent downward and back forming a loop through which the shaft extends, and converge at a common point into a downwardly-projecting grasping portion.

9. As a new article of manufacture, a viewholder for stereoscopes com osed of wire bent into substantially paralle strands forming a cross-bar and end guides for the view, the said parallel strands being bent back at the central portion of the view-holder to form a central loop through which the shaft of the stereoscope extends and twisted together at a point intermediate the said loop and end guides.

10. As a new article of manufacture, a view-holder for stereoscopes composed of wire bent into substantially parallel strands forming a cross-bar and end guides for the view, the said parallel strands being bent back at the central portion of the view-holder to form a central loop through which the shaft of the stereoscope extends and twisted together at a point intermediate the said loop and end guides, said strands having their free ends formed into a grasping portionunderneath the shaft.

11. As a new article of manufacture, a view-holder for a stereoscope composed of wire bent into parallel strands to form end guides for the reception of the view, the said wire extending from said end guides and being bent up to form a central loop through which the shaft extends.

12. As a new article of manufacture, a view-holder for a stereoscope composed of wire bent into parallel strands to form end guides for the reception of the view, the said wire extending from the said end guides and being bent up to form a central. loop, the parallel strands being twisted togetherat a point intermediate the central loop and end guides.

13. As a new article of manufacture, a view-holder for astereoscope com osed of wire bent into parallel strands to orm end guides for the reception of the view, the said wire extending from said end guides and being bent up to form a central loop through which the shaft extends, the ends of the strands terminating in a downwardly-extending grasping portion underneath the shaft.

14. As a new article of manufacture, a vi w-holder for stereoscopes, composed of wire bent into a central loop for the reception of the shaft of the stereoscopes, the said wire extending from said loop on both sides to form a cross-bar terminating in end guides sava e formed by substantially parallel strands of wire for the reception of the view.

15. As a new article of manufacture, a view-holder for stereoscopes, composed of wire bent into a central loop for the reception of the shaft of the stereoscope, the said wire extending from said loop on both sides to form a cross-bar terminating in end guides formed by substantially parallel strands of wire for the reception of the view, the said strands of wire being twisted together at a point intermediate the end guides and the central loop.

16. As a new article of manufacture, a view-holder for stereoscopes, composed of wire bent into a central loop for the reception of the shaft of the stereoscope, the free ends of the wire converging at a common point below the shaft and terminating in a grasping portion, the said wire extending, from said loop on both sides to form a cross bar terminating in end guides formed by substantially parallel strands of wire for the reception of the view.

17. As a new article of manufacture, a view-holder for stereoscopes, composed of two lengths of wire doubled on themselves so as to form substantially parallel strands shaped into end guides and extending toward a central portion where the strands of both lengths are formed into a loop for the reception of the shaft.

18. As a new article of manufacture, a view-holder for sterecscopes composed of two lengths of wire doubled on themselves so as to form substantially parallel strands shaped into end guides and extending toward a central portion where the strands of both lengths are formed into a loop for the reception of the shaft, the fee ends of the strands converging at a common point underneath I the shaft and terminating in a grasping portion.

19. As a new article of manufacture, a view-holder for stereoscopes, composed of two lengths of wire doubled on themselves so as to form substantially parallel strands shaped into end guides and extending toward a central portion where the strands of both lengths are formed into a loop for the reception of the shaft, the said strands being twisted together at a point intermediate the end guides and the loop.

20. As a new article of manufacture, a view-holder for stereoscopes, composed of a central portion adapted to slide on the shaft of the stereoscope, substantially parallel strands of wire formed into end guides eX- tending from the central portion, the .said parallel strands being twisted together at a point intermediate the central portion and the end guides to form a support for the .lower edge of the view and to prevent torsional twisting.

21. As a new article of manufacture, a view-holder for stereoscopes, composed of a central portion adapted to slide on the shaft of the stereoscope and having a grasping portion, substantially parallel strands of wire formed into end guides extending from the central portion, the said parallel strands being twisted together at a point intermediate the central portion and the end guides to form a support for the lower edge of the view and to l prevent torsional twisting. i Signed at Meadville, Pennsylvania, this 1 29th day of September, 1905.

' THOMAS F. CHARLTON.

I Witnesses:

E. O. FISHER, l L. I. BALDWIN. 

